Description
Freshwater Clam (Corbicula fluminea)
Overview
The Freshwater Clam (Corbicula fluminea) is a compact, rounded bivalve known for its smooth shell and natural ability to filter aquarium water. It improves water clarity by removing suspended particles and microorganisms, making it a popular choice for established aquariums. Best suited for stable, mature tanks with gentle fish.
Origin
Native to East and Southeast Asia, occupying slow-moving rivers, streams, and lakes with sandy or fine gravel substrates.
Feeding
A true filter feeder that consumes:
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Microalgae
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Infusoria
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Phytoplankton
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Fine suspended detritus
In very clean or newly established aquariums, supplemental feeding with phytoplankton or micronized invertebrate foods may be required.
Tank Mates
Peaceful and suitable for calm community tanks with:
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Tetras & rasboras
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Small gouramis
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Corydoras
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Cherry shrimp and other peaceful inverts
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Snails
Avoid: Loaches, puffers, crayfish, crabs, and large cichlids that may disturb or damage clams.
Aggression
None. Completely passive and typically remains partially buried in the substrate.
Experience Level
Intermediate. While hardy once established, they require:
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Mature tanks with stable micro-food levels
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Excellent water quality
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Fine sand or soft gravel for burrowing
Most issues arise from starvation or poor water conditions.
Water Parameters
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Temperature: 70–80°F (21–27°C)
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pH: 6.8–8.0
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Hardness: 6–18 dGH
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Notes:
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Very sensitive to ammonia and nitrite.
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Avoid strong currents and sharp substrates.
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Works best in calm, established aquariums.
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The Freshwater Clam (Corbicula fluminea) is a peaceful, low-maintenance filter feeder that enhances water clarity and fits well in mature community setups with gentle tank mates.